(* Copyright (C) 2018 Free Software Foundation, Inc.  *)
(* This file is part of GNU Modula-2.

GNU Modula-2 is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.

GNU Modula-2 is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License along
with gm2; see the file COPYING.  If not, write to the Free Software
Foundation, 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.  *)

MODULE decvalue ;  (*!m2iso+gm2*)


TYPE
   small = [-3..4] ;


(*
   decrement -
*)

PROCEDURE decrement (v: small) : small ;
BEGIN
   DEC (v) ;
   RETURN v
END decrement ;


VAR
   s: small ;
BEGIN
   s := decrement (-3)
END decvalue.
